Cutting-tool.



H. GAVE. GUTTING TOOL.

APPLIOATION FILED AUG. 9, 1912.

v 1 09 31,11 Patented June 2, 1914 yi fi WITNESSES: I JNVENTOR. 544Wfkzv y (hue. MJ7%% BY A TTORNE Y.

HENRY GAVE, OF SPRINGFIELD, MASSACHUSETTS.

CUTTING-TOOLr Specification of Letters Patent.

Patented June 2, 1914.

Application filed August 9, 1913. Serial No. 783,970.

To all whom it may concern Be it known that I, I'IENRY CAVE, a citizenof the United States of America, residing at Springfield, in the countyof Hampden and tate of Massachusetts, have invented new and usefull'n'iprm'cments in Cutting-Tools, of which the following is aspecification.

This invention relates to a torch or burner for gases and morespecifically to a cutting torch or tool for the oxy-fuel-gas cuttingprocess.

Among the objects of the invention is the production of a torch whichmay be readily disassembled and in which new parts may, therefore, beeasily substituted; and the pr0- duction of a torch in which a pluralityof gases may be led through the pivot point of a ivoted nozzle in amanner whereby the nozz e may be turned at will upon its pivots in thenozzle carrier without confusing the gases.

lit is obvious that by the construction 1 have adopted and arranged, itwould be equally possible and practicable to discharge more or less thanthree gases, but 1' have shown the instrument as designed fordischarging three gases, a fuel gas such as acetylene, oxygen forburning the acetylene, and an independent oxygen supply for oxidizingthe metal to be out.

in the drawings :-Figure l is an end view of my new cutting nozzle; Fig.2 is a cross-section thereof on the line 2-2 of Fig. l; lFig. 3 is anend view of the instrument; and Fig. dis a cross-section thereof on theline 4-4 of Fig. 2.

The instrument comprises a carrier memher a provided at one side with aspur b to storm a handle or bearing and provided further at its bottomwith circular projecting boss 0 having screw threaded apertures for Ithe reception of the various gas pipes 1, 2,

and 8. Sleeved upon the boss 0 and secured thereto by the set-screws dis an upstanding arm 6 carrying a set-screw f and jam-nut g. Drilled inthe member a are three ports, one leading from each of the screwthreaded recesses which receive the pipes l, 2, and 3. These ports aredesignated by a, a and a (see Fig. 4) and being bent at right anglesdischarge into the cone-shaped recess it in the member 0:. llhe nozzleas a whole comprises a carrier portion 71 and a tip portion 10, asclearly shown in the drawings. The carrier i is provided with acone-shaped proand 70 of the member 7a.

jection is which accurately fits the coneshaped recess k and is moreovercut away as shown at Z and m and provided with three ports 70, I0 and 70corresponding with the ports a, a and a The member his further providedwith a cone-shaped recess such as 0 in which accurately fits the tip ;0secured therein by the jam-nut g, the said tip being provided with threeparallel ports 79', p and p communicating with the ports is, 70 It willbe clear from the drawings in the illustrative form there disclosed thetip p is so constructed as to mix two of the gases, thus gases from theports 70' and is each 'fiow into the ports p and 12 while on the otherhand the gas from the pipe 3 goes through port 70 and.

out from the nozzle to the port 12* without being intermingled withother gases. It will thus be seen that the member is carrying thedischar e tip. 39 is pivotally mounted between the two arms of thesubstantially U- shaped securing head formed by the members a and e andthat it may be turned at will upon these pivots without disturbing theuninterrupted flow of each gas through its appointed channel from thepipe 1, 2, or 3 to the discharge ports p, p, or p and thus, whileindependent gases may be brought to bear upon the metal to be cut, thenozzle which discharges these gases may be turned upon its pivots atwill.

it is obvious that the device may be readily disassembled merely byloosening set-screws f and (Z and that therefore anyone of the parts a,e, p, or 70 may be made and sold separately. it is obvious more I overthat various changes may be made in the precise manner here shown ofdrilling the ports, the gist of the invention being rather theproduction of a cutting-torch involving three independent gases whichmay be adjusted at will while being used.

Having now particularly pointed out my invention but well knowing thatmany departures and modifications may be made from the specific form inwhich I have chosen here to illustrate it without depart ing from thescope of the invention which is more truly bounded and defined by theclaims hereto appended, ll claim 1. In a cutting tool and incombination, a head comprising a substantially U-shaped frame, one armof said ll being provided with a plurality of gas orts and the otherwith a set screw, a nozz e provided with a ud eon havin a plurality ofgas ports to orr spond with the gas ports of the head, said nozzle beingivotally mounted between the arms of the la, and a supply pi e securedto the base of the U-s aped rame, whereby the angle of the nozzle may bevaried without interrupting the flow of the gases.

2. In a cuttin tool, a head comprising a substantially U-s aped member,a pivot pin in one arm thereof, a cone-shaped recess in the other armthereof, a nozzle having a cone-shaped projection adapted to fit saidcone-shaped recess, said nozzle being pivotally mounted on saidcone-shaped projection and said pivot in, said head and said nozzlebeing provide with three cooperating gas ports leadin from the base ofthe U-shaped member to t e tip of said nozzle whereby three independentgases may be discharged from said nozzle and the angle of said nozzlevaried at will without interrupting the flow of any of said gases.

3. In a cutting torch, a head member having two bearings for a nozzleand a plurality of gas ports in one of said bearings, and a nozzle havina plurality of gas ports to correspond witil the gas ports in saidbearing, whereby the nozzle may be turned in said bearings withoutinterrupting the flow of gases through said ports.

4. In a cutting torch, and in combination with a nozzle, said nozzlehaving a plurality of pivots, a mounting for said nozzle including meanswhereby said nozzle is pivoted in said mounting, and including gas portsin said mounting whereby a plurality of independent gases may be fedthrough the mounting and into one of the pivots of the nozzle. I

5. As an article of manufacture, a tip carrier having a recess thereinfor the reception of the tip, a conical boss thereon at right angles tothe recess, and a plurality of independent gas ports communicating fromthe exterior of said boss to said recess.

- HENRY CAVE.

Witnesses:

SEBASTIAN HINTON, MINNIE A. HUNTER.

